Wet, Dry, or Pre-Action?Whether you have an industrial, institutional or commercial building, there’s a lot of people, property and processes to protect. That’s why MARCO delivers the best options in sprinkler technology. From sprinkler heads and backflow prevention valves to diesel and electric fire pumps, MARCO offers top of the line products from industry leaders like Viking, Reliable, Victaulic, Aurora, and Ames.
Wet Sprinkler Systems
Wet sprinkler systems are the most prevalent and cost-effective of the four types of sprinkler technologies. Continually charged with water, these systems are designed to discharge at a fixed temperature which extinguishes and controls the spread of fire. Wet systems are very reliable and are a time-tested technology for fire suppression due to their efficacy and relative low cost.
Like clean agent suppression systems, pre-action sprinkler systems are used in environments where water could potentially damage high-valued assets like those housed in vaults, museums, libraries or data centers. Pre-action systems are charged with pressurized air or nitrogen. The water is held back by an electric pre-action valve which is controlled by a supplemental fire detection system. This allows for investigation of the emerging fire before water is released, thus sparing high-value assets from irreparable water damage.
Dry Sprinkler Systems
Dry sprinkler systems are used in unconditioned spaces where temperatures have the potential to fall below freezing. Though effective, dry sprinklers generally require more maintenance and are typically more costly to install and maintain. Dry-pipe systems can also be used as subsystems for more complex wet systems such as in attics, warehouses or refrigerated storage areas.
Similar to pre-action sprinklers, deluge systems are controlled by an early warning detection system which commences the flow of water via an electric deluge valve. Deluge systems feature open sprinkler heads, so that when the valve activates, water is released through all heads simultaneously. High-capacity water release is needed in large areas such as airplane hangars, fuel-loading facilities, power plants, as well as facilities which store or process chemicals or hydrocarbon.